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Third Prime

New York, New York · Invests in US; Europe; MENA; Asia; Africa; LATAM; North America · Website

Check size

$1M-$5M

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Pre-SeedSeedSeries AAI & Machine LearningCybersecurityFintechReal Estate & ProptechCrypto & Web3RoboticsFintech & PaymentsReal Estate & PropTechManufacturing & IndustrialRobotics & AutomationSecurity & Cybersecurity

Thesis

Third Prime invests in companies rewiring how capital, assets, and operations move through the economy. We focus on three intersecting 'real-economy infrastructure' verticals—fintech, proptech, and crypto/blockchain—backing platforms that enable paradigm shifts in these sectors. We believe technology should serve real economic activity, not replace it.

Likely not a fit for

We avoid unfocused generalist approaches, consumer social media, pure gaming, non-core sectors, and teams without domain expertise. We focus on infrastructure that powers economic activity, not consumer experiences.

How they invest

Lead or follow
Leads or follows
Typical decision
~2 weeks
Warm intro
Preferred
Involvement
Takes a board seat
Fund status
Actively deploying
Assets under mgmt
$500M
Decision process
Partnership vote

Partners & team

10 contacts on file

KH

Keith Hamlin

Co-Founder and General Partner · Primary contact

WB

Wesley Barton

Co-Founder and General Partner

MK

Mike Kim

General Partner

JB

Jenny Bloom

General Counsel / COO

JL

Jason Lee

Operating Partner

KR

Kristen Rooney

Head of Business Development

CK

Christian Kaczmarczyk

Principal

BR

Benji Rosenblatt

Vice President

SP

Steve Parker, Jr.

Venture Partner

JA

Jeff Adelson-Yan

Venture Partner

Portfolio

EverstarClimate Clean Energy

Everstar is an innovative company focused on accelerating nuclear power deployment through advanced AI technologies. Their platform, Gordian Research, integrates complex nuclear knowledge to streamline workflows, enhance safety, and reduce costs in the nuclear industry.

MoonwareEnterprise Software

Moonware is building the ecosystem for automated airfield operations across the passenger, cargo, defense, and advanced air mobility sectors.

Octane
PaywatchFintech Payments

Paywatch offers flexible financial solutions, including daily, weekly, and monthly salary options, as well as corporate welfare points management.

GreenSparkEnterprise Software

GreenSpark provides modern software solutions tailored for scrap yards, focusing on optimizing workflow, inventory management, and sales processes in the metal recycling industry.

Circle

Circle Games is a mobile gaming company that offers engaging puzzle experiences through its flagship game, Sort Express. Players are challenged to organize, match, and clear real-world 3D objects across increasingly complex levels, providing a uniquely satisfying gameplay experience.

LatchBiotech Life Sciences

LatchBio partners with leading biotech solution providers building a new class of molecular measurement technologies, accelerating data analysis for R&D teams in the biotech sector.

ChimeFintech Payments

Chime is a financial technology company that provides mobile banking services with no hidden fees. It offers features such as early direct deposit, automatic savings, and a user-friendly app to help customers manage their finances effectively.

HalbornSecurity Cyber

Halborn is the industry-leading blockchain solutions firm for enterprise-grade digital assets, trusted by the top financial institutions and blockchain ecosystem leaders. They provide world-class security solutions including smart contract auditing, penetration testing, and advisory services.

Nova Labs

Nova Labs is a pioneering company focused on building decentralized wireless networks, particularly through its Helium Mobile service and IoT solutions. Founded in 2013, the company aims to revolutionize connectivity by creating an open-source, affordable, and secure global wireless network owned by individuals.

ValidMindEnterprise Software

ValidMind is the AI governance platform for regulated industries. We can help your organization adopt AI quickly, safely, and with measurable ROI through centralized oversight, automation, and scalable risk operations.

First ResonanceEnterprise Software

First Resonance is a technology company focused on modern manufacturing software, specifically through its ION Factory Operating System, which enhances manufacturing processes with AI-driven solutions for traceability and compliance.

Recent activity

Third Prime in the news

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Research briefRead more
Third Prime Research Document Investment Thesis Third Prime is a specialized venture capital fund focused exclusively on three intersecting "real-economy infrastructure" verticals: fintech, proptech, and crypto/blockchain. The firm believes that paradigm-shifting companies emerge at the intersection of these sectors, specifically backing platforms that rewire how capital, assets, and operations move through the economy rather than taking a broad multi-sector approach. Founded in 2016 by Wes Barton and Keith Hamlin, Third Prime brings a unique philosophy grounded in patience, stewardship, and community building—principles Barton developed during his decade as a working farmer. This farmer-centric philosophy translates into long-horizon, relationship-driven capital partnerships that prioritize founder success alongside financial returns. Sector Focus & Investment Thesis Third Prime concentrates its time and capital across three primary verticals: Fintech: Digital payments, earned wage access, embedded finance, open banking, credit infrastructure, and financial wellness platforms. The firm has backed companies like Paywatch (Asia payroll/financial wellness), Octane (alternative asset financing), and Circle (blockchain-based digital currency). They focus on financial infrastructure that democratizes access to capital and financial services globally. PropTech: Real estate technology and operations software that transforms how property transactions, management, and valuation happen. Portfolio includes Latch (enterprise access solutions, exited via IPO), Cubby (self-storage operations software), and HouseAmp (renovation financing for home sellers). They believe technology can fundamentally improve how real estate operates at scale. Crypto & Blockchain: Infrastructure, security, and financial applications built on blockchain technology. Portfolio includes Circle (USDC stablecoin), Nova Labs (decentralized 5G network), Chaos Labs (blockchain security), and Halborn (smart contract audits). The firm views blockchain as essential infrastructure for the next generation of financial and communication systems. Recent Strategic Focus & Evolution In recent years, Third Prime has expanded into emerging infrastructure plays while maintaining their core thesis. Notable recent investments signal expansion into: Industrial Tech & Manufacturing : Everstar (AI for nuclear operations), First Resonance (manufacturing optimization), Stell (aerospace supply chain) Compliance & Risk : ValidMind (AI model validation), Thoropass (compliance automation), Serent (healthcare RCM) AI-Powered Operations : Datch (industrial operations intelligence), CalmWave (hospital automation), Autobiographer (AI-powered life narrative) Robotics & Automation : Bone (autonomous robotics and AI systems) These expansions remain consistent with their core "real-economy infrastructure" thesis—enabling businesses to operate more efficiently through technology. Stage Focus & Ticket Size Third Prime invests primarily at the Seed stage , with occasional pre-seed and Series A participation: Pre-Seed : $250K-$500K for early product and initial traction Seed : $1M-$5M (primary check size) Series A : Selective follow-ons and co-leads for portfolio companies demonstrating strong product-market fit Typical investment range: $1M-$5M , with flexibility for exceptional teams and market opportunities. Lead Tendency Third Prime exhibits a mixed approach : They frequently lead seed rounds for portfolio companies but also participate in co-led structures. They demonstrate strong conviction in their portfolio through multiple follow-on investments and provide operational support beyond capital. As of 2025, the firm has made 9 new investments in the last 12 months, with 130+ companies in their portfolio across multiple funds. Fund Details & Activity Assets Under Management : $500M+ Fund Status : Actively deploying. Recent activity data from Dec 2025 shows the firm continues to invest heavily: Latest investments include Bone (robotics/AI, Nov 2025), Verisoul (fraud detection), and Cubby (Series A, Jan 2026) Fund has deployed capital to 6+ new companies in last 12 months Maintains active portfolio management with follow-on investments in existing companies Geographic Focus : United States (primary), with selective international investments in Europe, Israel, and Asia for sector-specific opportunities. Decision Process : Partnership-driven. The fund operates as a partnership of GPs and senior investment professionals, with decision-making distributed across multiple partners (GPs: Keith Hamlin, Wes Barton, Mike Kim). Team & Key Personnel Founders & Leadership: Wes Barton (Co-Founder & GP) : Decade at Trimaran/Trian in PE/hedge funds, tech investment banker at Skadden, J.D. from Duke Law. Brings "farmer" philosophy and long-term value creation mindset. Keith Hamlin (Co-Founder & GP) : 7 years as M&A lawyer at Skadden, SVP at Pan Am Equities managing alternative investments and real estate. J.D. from Harvard Law. Mike Kim (General Partner) : Partner at Valinor Management and Suvretta Capital, 10+ years investing in public/private markets, Georgetown graduate. Key Operational & Investment Staff: Jenny Bloom (General Counsel / COO) : Former corporate associate at Wilson Sonsini and Skadden, Harvard Law graduate. Brings venture and M&A expertise. Jason Lee (Operating Partner) : Serial entrepreneur who founded DailyPay ($2B exit 2022) and Salt Labs ($200M Chime acquisition 2024). Recognized innovator and corporate board advisor. Kristen Rooney (Head of Business Development) : Former IR/Marketing lead at Engle Capital, investor relations specialist. Christian Kaczmarczyk (Principal) : Former builder at BlockFi, Bison Trails, FalconX; crypto ecosystem investor. Benji Rosenblatt (Vice President) : PE background at Macquarie Capital in software/services, Princeton graduate. Venture Partners: Steve Parker, Jr. (CEO & Co-Founder of Levelwing marketing firm) Jeff Adelson-Yan (President & Co-Founder of Levelwing) Portfolio Highlights Notable Exits: Chime Financial (IPO) - digital banking Circle (IPO) - blockchain/USDC Latch (IPO) - enterprise access solutions WhoSay (Viacom acquisition) - influencer marketing Spruce (Zillow acquisition) - title insurance tech MoneyKit (M&A exit) - financial data aggregation Rize (Fifth Third Bank acquisition) - embedded finance Salt Labs (Chime acquisition, ~$200M) - workplace savings ZipDrug (IngenioRx acquisition) - pharmacy delivery Active Portfolio Highlights (130+ portfolio companies): Everstar : AI-powered compliance for nuclear operations and energy Moonware : Aviation ground operations automation Octane : Lifestyle asset financing (powersports, RVs) Paywatch : Earned wage access and financial wellness for Asia GreenSpark : Metal recycling operations software Cubby : Self-storage operations platform FirstResonance : Manufacturing optimization (ION Factory OS) Halborn : Smart contract security and blockchain audits Nova Labs : Decentralized 5G and LoRaWan network Monite : Embedded finance platform for SMBs ValidMind : AI model validation and compliance Bone : Autonomous robotics and AI systems Verisoul : Fraud detection platform (bot/duplicate detection) And 117+ additional portfolio companies across fintech, proptech, and blockchain verticals. Investment Decision Process & Timeline Decision Structure : Partnership governance with GP consensus required for investments above certain thresholds. Operating partners like Jason Lee provide strategic input on operational aspects. Decision Timeline : Typical seed rounds 2-4 weeks from final meeting to term sheet, with flexibility for exceptional opportunities. Warm Intro Preference : Strong preference for warm introductions through their network, though will consider cold outreach from exceptional founders. Founder Preferences & Anti-Thesis Ideal Founder Profile: Technical or operations-focused founders with domain expertise Teams that have demonstrated traction (MVP or early revenue) Founders solving real problems in their three core sectors Teams with coachability and genuine partnership orientation Experienced operators with successful exits or scaling experience Anti-Thesis: Unfocused "everything to everyone" strategies Teams without domain expertise in their chosen vertical Non-core sectors outside fintech, proptech, or blockchain Consumer/social media plays Hard hardware without accompanying software/data moat Competitive Advantages & Positioning Sector Specialization : Focused thesis attracts founders in target verticals who benefit from specialized expertise Multi-Sector Infrastructure Play : Unique positioning at intersection of fintech, proptech, and crypto creates cross-portfolio learning Operational Partnership : Access to successful founders (Jason Lee) and experienced operators (Jenny Bloom, Christian Kaczmarczyk) Track Record of Exits : Multiple IPO and strategic exits demonstrate ability to scale companies successfully Long-Term Capital : Patient capital and relationship-focused approach appeals to founders seeking true partners Global Network : Investments across US, Europe, Israel, and Asia provide international distribution and market insights Recent Activity & Fund Momentum 9 new investments in 2025 (through November) signal strong deployment pace Recent closes : Cubby Series A (Jan 2026), Bone (Nov 2025), Verisoul integration Co-investor relationships : Strong patterns of follow-on investments and portfolio company interconnectedness Market positioning : Continues to lead or co-lead seed rounds in target verticals Fund Strategy Observations Third Prime's strategy reflects: Concentrated conviction : Deep focus on three verticals enables them to build unique expertise Pattern matching : Ability to connect portfolio companies for B2B partnerships and customer introductions Patient capitalism : Long-horizon approach aligns with founder incentives for sustainable growth Value-add beyond capital : Operational expertise, founder networks, and strategic introductions Category leadership : Positioning as the "real-economy infrastructure VC" differentiates from generalist and pure-SaaS focused funds

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